Party leader, Sophie Walker, said: "This year I want to lead a party and a movement of women and men who will stand strong in the face of racism, sexism, homophobia and all other kinds of discrimination.

Organisers have said the turn out is 'incredible'. Pic: Womens March London

"We must unite to protect our rights in the face of a US administration and uncertain Brexit negotiation.

"We must protest an environment in which many minorities feel threatened.